I've had to deal with the mortgage group and this included a remodel loan rolled into the mortgage. These people have proven themselves total idiots. The verbal disclosures when answering direct questions have been murky and in fact after closing found to be patent lies.
IF you must use them for a Fannie Mae REO purchase (it happens) HAVE YOUR ATTORNEY examine all closing docs before you allow a closing to schedule. Especially make certain that any escrow docs have all language for funds disbursement stricken and rewritten to your advantage. They will find every reason in the world to not give you your money and trust me...it's yours since you have been paying interest from closing on the full amount. Not paying your contractors and subs....not a good thing. Have milestones described in detail or you will get into a pissing contest over completion percentages. As soon as you are done...refinance. It's worth the extra expense.